The JChemPaint Applet and Swing Application are Java programs for drawing 2D chemical structures like those found in most chemistry textbooks. It is based on the Chemistry Development Kit (cdk.sf.net). Downloads, tracker, and source code repository can be found on http://jchempaint.github.com

jDip is a tool for mapping, managing, and adjudicating Diplomacy games. It has a simple but powerful graphical interface, with a richly customizable map display. Windows, Linux, Mac OS X, and Solaris are supported. Over 25 variants are supported.

S.C.O.U.R.G.E. is a roguelike game with a 3D user interface. The game allows a group of four characters to search for treasure, kill enemies, gain levels, etc. The code is C++ using SDL, OpenGL and freetype. The game uses Squirrel for scripting.

Virtual T is a TRS-80 Model 100/102/200 emulator that runs on Windows, Linux, and Macintosh. The goal of Virtual T is to provide 100% hardware emulation so any existing programs will run. It also adds powerful development and debugging tools.

eBay bidding, sniping, and tracking tool. Platform independent (Linux, Windows and MacOSX) with an intuitive and friendly UI. Includes a unique, powerful multisniping feature. This SourceForge project is out of date; go to: http://www.jbidwatcher.com

After a program has been thrown into the world in binary form, it can boomerang back as source code. The Boomerang reverse engineering framework is the first general native executable decompiler available to the public.

WideStudio is an Integrated Development Environment (IDE) for building window applications in C++, Ruby, Python an Perl for Windows, MacOSX, Linux, FreeBSD, SOLARIS and other unix and BTRON and T-Engine. This is open and free (under MIT/X Consortiun Lice

Conquest is a Unix/C port of a real-time, multi-player space warfare game that was originally written in RATFOR for the VAX/VMS platform by Jef Poskanzer and Craig Leres. It supports both curses and OpenGL interfaces. Sound is supported as well.